You can enter multiple words with ".AND." or ".OR." keywords (without double-quotes) between them. For example, type:

FDA .AND. Software .AND. Guidance

to find information that contains all three words "FDA", "Software", and "Guidance".

or

Computer .OR. Software

to receive information that contain either the word "computer" or
"software".

You may use wildcards ("*" and "?"). If you type "inter*", you will receive all entries that
have a word that starts with "inter". This can be especially useful when you
have several project/document codes assigned. They will have a common prefix so
you can search for a full list of your projects documents by entering the
prefix.

NOTE THAT THIS SEARCH FACILITY DOES NOT SEARCH ENTIRE REFERENCED
DOCUMENTS AND REGULATIONS. IT ONLY SEARCHES THE NAMES, ABSTRACTS AND EXCERPTS PROVIDED
FOR EACH DOCUMENT.

ALSO NOTE THAT EACH SEARCH ONLY WORKS WITHIN THE
CONTEXT SELECTED: WARNING LETTERS, RECALLS, PROJECTS, or ALL OTHER DOCUMENTS.